Archives-June... 

Moringa is known to contain elements that are essential to life. Major roles played by elements include enzyme activation, nerve impulse conduction, oxygen transport, immune functions. The two major groups of elements are major and minor elements (trace elements). Major elements such as Na, Ca, K,P, Mg and trace elements such as Fe, V, Zn, Cr, Cu, Cd, Co , Mn, Pb, Al, Br were determined using both Neutron Activation Analysis(N.A.A) and Atomic Absorption Spectrometer(A.A.S). Further research is required to carry out the effectiveness of Moringa preparations in reducing the risks associated with diseases such as diabetes, hypertension.

Airborne beta activity measurements have been carried out on the site of the Ghana Atomic Energy Commission (GAEC). The GAEC is a nuclear institution in Ghana that is involved in the application of nuclear techniques in research, radioisotope production and utilization, operation of a research reactor and processing of radioactive waste. Ludlum model 333-2 air beta monitor was used to conduct the measurements. Monthly averages of gross beta activities ranged from 1.2 to 3.0 mBq/m3. The gross beta activities measured were found to be due mainly to decay products of natural radioisotopes. Monthly total suspended particulate mass concentrations ranged from 22 to 110 µg/m3. Gross beta activities and particulate mass concentrations partially correlated. Based on these results, it could be stated that present ambient airborne radioactivity has minimal radiological consequences on the environment and inhabitants of the study area. Mass concentration levels would however need to be regulated.

This article describes the effect of cardiac insufficiency of the patient

A numerical study is presented on the effects of chemical reaction and magnetic field on the unsteady free convection flow, heat and mass transfer characteristics in a viscous, incompressible and electrically conducting fluid past an exponentially accelerated vertical plate embedded in a porous medium by taking into account the heat due to viscous dissipation. The problem is governed by coupled non-linear partial differential equations. The dimensionless equations of the problem have been solved numerically by the implicit finite difference method of Crank – Nicolson’s type. The effects of governing parameters on the flow variables are discussed quantitatively with the aid of graphs for the flow field, temperature field, concentration field, skin-friction, Nusselt number and Sherwood number. It is found that under the influence of chemical reaction, the flow velocity as well as concentration distributions reduce, while the velocity reduces as porous medium increases. Viscous dissipation parameter leads to increase the temperature.

Vegetation and soil management needs a holistic approach which is already devised into the state and transition model and other ecological, while abolished, models. But these models have some disadvantages and limitations that disable them for managerial purposes. Here in this paper, using a case study to prove the idea, another complementary state and transition model is introduced. This model is more comprehensive and gives managers a more wide view into ecological processes undergoing in a site.

The phenomenal growth of retail in India is reflected in the rapid increase in number of supermarkets, departmental stores and hypermarkets in the country. However, this unperfected growth trend has been challenged by the shadow of the current economic slowdown, which has raised a fear of dip in consumption and slowdown of growth for Indian organized retailers. At a time when consumer spending is on decline, success will lie with those retailers that can drive customer loyalty by responding to the demands of the discerning consumer. This study aims to know the Consumers opinion towards Department Stores in Erode City. Descriptive research design is used in this study and sample was collected from 300 respondents through structured questionnaire. The collected data was tabulated and analyzed using statistical tools like simple percentage method and Chi-square test

This paper examines, on theoretical as well as on Constitutional basis, Corporate Social Responsibility, and tries to locate its basis in our constitutional ideals, and thereby it will provide an insight of ‘Constitutional Discourse’ for CSR. It makes a literary attempt to summarize idea of Corporate Social Responsibility and explores ‘constitutional ideals’, ‘goals for the nation’, and the ‘means’ to achieve those ideals and goals. It provides an ‘alternative argument’ for promoting CSR as a duty/service ‘towards the nation’ as provided under Article 51A of the Constitution of India. This ‘alternative argument’ tries to symbolize idea of ‘corporate-citizenship’ in its truest sense. It tries to encapsulate CSR in terms of promoting ‘fraternity’, a vision of the Constitution, as declared and pledged in the Preamble. Part 5th discusses the futurology of CSR, and all other incidental matters including summations.

The different layers of the network interface with each other for information transfer. In the cross-layer architecture the physical layer and medium access layer share information so that these information becomes available to the higher layers. The power control information of the physical layer and channel allocation information of the medium access layer are shared are shared with the upper network layers. Interference is a big challenge in wireless networks, so the communication links between two nodes use bit rate as the function parameter in the physical and access layer. The channel and network topologies vary from milliseconds to several seconds depending on the connection variation. The network control mechanism finds out the access control vector and the traffic forwarding decision to accomplish the quantitative performance objectives. The network performance objectives are overall throughput, power optimization and utility optimization of allocated resource rates. The cross-layer control algorithms with optimal performance are presented and analyzed. In this paper the detailed analysis and design techniques are presented.

Wireless sensor networks are generally deployed in inaccessible terrains for monitoring certain physical parameters like temperature, pressure etc. Sensor nodes sense the event and send the sensed data towards sink nodes using multi hop path. Since radio communication is expensive in terms of energy consumption, the sensor nodes typically spend most of their energy reserve on communication during data dissemination and retrieval. Storing data in-network at specific locations within WSNs that minimize packet transmissions reduces the energy consumption, and hence extends its lifetime. Considering limited storage space, limited energy and other constraints of sensors, a data caching mechanism for multi sink sensor networks is proposed. The proposed scheme Data Caching for query optimization in multi sink sensor networks (DCQOM) extracts the common sub tree of the networks first and then forms two caching zones: One from source node to common root and other from common root to sink nodes. The sensor nodes in the caching zones cooperate among themselves to form a larger cumulative cache. A token-based cache admission control scheme is devised, which ensures proximity of cached data closer to sink(s). Simulation results show that DCQOM provides substantial energy saving and data availability as compared to other caching schemes.

The main aim of the paper is to design and simulate an inset fed rectangular microstrip patch antenna and study the effect of antenna dimension Length (L), Width (W), substrate parameter relative dielectric constant ( ) substrate thickness (h) and radiation parameters. The result is performed by thickness of 1.57mm of substrate and Rogers RT/duroid 5880 (tm) with dielectric constant of 2.2, S- band frequency 2.4GHz have observed the better result. In the recent years the development in communication systems requires the development of low cost, minimal weight, low profile antennas that are capable of maintaining high performance over a wide spectrum of frequency. This technological trend has focused much effort into the design of a Microstrip patch antenna. The proposed antenna design on different resonant frequencies and analyze the result of all operating frequency between 1GHz to 10GHz, when the proposed antenna designs 2.4GHz operating frequency. At 2.4GHz the verified and tested result has done in Ansoft HFSS version 11.It has observed the Return loss = -30.8 dB, VSWR =1.05 and directivity = 6.732 dB in this paper. An omnidirectional radiation pattern and stable gain are observed.